Answer

yes you can use the Home pod with Apple TV to stream the sound to the home pod. But the volume is noyes you can use the Home pod with Apple TV to stream the sound to the home pod. But the volume is not very loud. At full volume it's the ok. However the sound quality is very good. I wish there was a way to make it louder...

Answer

Yes, it can, but you must complete “iTunes Match” first, so that your music is available in the clouYes, it can, but you must complete “iTunes Match” first, so that your music is available in the cloud. Once you have done that, and the HomePod(s) are linked to the same Apple account as the iTunes Match, Siri can access your entire library and you can ask Siri to play certain songs, certain albums, to shuffle all songs, or songs of a specific genre, or a specific artist as well as any of your playlists. It’s really great!